Home / 261,500.10-392,415.93-111,741.45

Finding the Fourth Proportional to 261,500.10, 392,415.93 and 111,741.45

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Solution

The fourth proportional to 261,500.10, 392,415.93 and 111,741.45 is: 167,683.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,500.10 : 392,415.93 = 111,741.45 : x
  2. Step 2: Convert to fraction form
    261,500.10/392,415.93 = 111,741.45/x
  3. Step 3: Cross multiply
    261,500.10x = 392,415.93 × 111,741.45
  4. Step 4: Simplify right side
    261,500.10x = 43,849,125,021.30
  5. Step 5: Solve for x
    x = 43,849,125,021.30/261,500.10
  6. Step 6: Final answer
    x = 167,683.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.